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Article By:
Motocross Action
2026-06-03 17:45:36

FIRST LOOK! 2027 YAMAHA YZ85 & YZ85LW

Summary By: eMotoX
Yamaha has unveiled the 2027 models of its YZ85 and YZ85LW motocross bikes, targeting younger riders with a comprehensive suite of updates designed to enhance rideability, performance, and durability. Recognised as a crucial platform for emerging racers, the new models focus on delivering smoother power delivery across the entire rev range, making the bikes more accessible to developing riders while still supporting skill progression. The updates reflect Yamaha’s commitment to refining the YZ85’s role as a stepping stone within the motocross hierarchy. Significant engine improvements include the introduction of a MotoTassinari VForce4R reed valve, an updated power valve, and a redesigned air filter shape, all aimed at optimising power output and throttle response. Additional tuning adjustments, such as revised carburettor settings and CDI ignition timing, help the bikes perform reliably across varying conditions and altitudes. To further enhance rideability, Yamaha has increased the flywheel weight to provide greater inertia, resulting in smoother acceleration and more manageable power delivery. Durability and maintenance have also been key focuses in the 2027 update. The engines now feature a new alloy cylinder head, a redesigned water pump impeller, and an updated water pump cover to improve cooling efficiency and robustness. Transmission components have been strengthened, and the clutch system benefits from new friction plate materials and judder springs, which contribute to improved reliability and easier starting. These enhancements are particularly valuable for younger riders, as they reduce mechanical wear and promote confidence during use. On the chassis front, Yamaha has introduced new engine and swingarm brackets to optimise rigidity, aiming to boost rider confidence through better stability in corners and over rough terrain. The inclusion of sealed front wheel bearings reduces maintenance demands and enhances durability. Other ergonomic improvements include a quick-action throttle with a reduced operating angle for sharper response, and a water-resistant PVC handlebar pad that aligns with the styling of Yamaha’s broader YZ range. Overall, the 2027 Yamaha YZ85 and YZ85LW models represent a thoughtful evolution of Yamaha’s youth motocross offerings, balancing enhanced performance with greater ease of use and reliability. These updates ensure the bikes remain competitive and appealing to young racers as they develop their skills and progress in the sport. Yamaha’s continued focus on refinement underscores the importance of the YZ85 platform within the motocross community.